South Carolina CDL Practice Test: Double and Triples - Test 4 2026
Based on
2026 SC CDL Handbook
Instruction: To obtain this endorsement for pulling two or three trailers, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the SC CDL Handbook. The Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at South Carolina DMV locations.
3. Why should you hang the electrical cable with the plug down when uncoupling?
A
All of the listed answers.
B
To prevent rain from entering it.
C
To prevent moisture from entering it.